.app{
	width: 100%;
	height: 100vh;
	background-color: #ffffff;
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
}
.loading43{
	width:140px;
	height:4px;
	border-radius: 2px;
	background-color: rgba(0, 0, 0, 0.2);
	position: relative;
}
.loading43:after{
	content: '';
	height: 4px;
	border-radius: 2px;
	background-color: #2aa738;
	position: absolute;
	animation: eff43 2.4s ease-in-out infinite;
}
@keyframes eff43{
	0%{
		width: 0;
	}
	50%{
		width: 100%;
	}
	100%{
		width: 0;
		right: 0;
	}
}